Desire Climax

Omari Mio is a normal 17 year-old girl. She goes to school and works a part-time job to help support her family. Because her father is dead and her mother's sick, she often finds it hard to make ends meet. One night, as Mio is coming home from work, she meets a handsome stranger who suddenly steals a kiss from her, and then throws money at her offering to buy her. Who is this mysterious stranger that stole Mio's first kiss?